Curling machine for caps for jars



June 29 1926. v 1,590,333

Y s. N. TEVANDER CURLING MACHNE FOR CAPSVFOR JARS Filed June 4, 1923 6sheetsheet 1 l 3 ZZ yl/f .3v l f h/ Q 3 f* v l0 w/ l /27 @9 1i 35 i J6 xif? Z5 Q19 1 9 2 l 35 @9 5 5 June 29 l1926. 1,590,333

S. N. TEVANDER- CURLING MACHINE FOR CAPS FOR JARS Filed June 4. 1923 6SheetsSheet 2 M n n June 29 1926. 1,590,333

S. N. TEVANDER I CURLING MAGHNE FOR CAPS FOR JARS Filed June 4, v1923 5sheetslsheet k:5

1,590,333 s. N. TEVANDER CURLING MACHINE FOR CAPs FOR JARS Filed June 4,1923 6 sheetsLShe-. 4

June '29 1926.

Junezs 1926. 1,590,333

S. N. TEVANDER c'URLING MACHINE FOR CAPs FOR JARS Filed June 4, 1923 ssheets-Sheet 5 June 29,1926. 1,590,333

S. N. TEVANDER CURLING MACHNE FOR CAPS FOR JARS Filed June 4, 1923 6Sheets-Sheet 6 CAI i chucks.

-Patented June 29, 1926.

UNITED. STATES 1,590,333 PATENT or-Fica SWAN NILS TEVANIQER, OF MAYWOOD,ILLINOIS, ASSIGNOR T0 SWAN METALLIC SEAL & GAP COMPANY, A CORPORATIONILLINOIS.

CUBLIN'G- MACHINE FR CAPS FOB JARS.

Application led June 4,

This machine is adapted to curl over the edge of a flange ora cap usedto cover the top of a jar or receptacle that is to be sealed thereon bya special machine not shown, which changes the shape of the iange or theskirt of the cap from what is shown'in these drawings to a form whichseals the cap on to the mo'xh of thejar or receptacle. The function otthis machine is simply to curl over the raw edge on the skirt of'the capand to do this in the most expeditious manner and most desirable formfrom the standpoint of the results arrived at and the mechanism employedwhich is the object of the invention.

Reference will be had to the accompanying drawings in which Figure 1 isa sectionalv A elevati-on through a portion of a cap whichis'Ip-reparedready to be operated uponnby:4

the machine. Fig. 2 shows a similar view to that of Fig. 1 but shows theedge of the iange of the cap curled over as the finished product of themachine. To change the edge of the vskirt or liange of the cap from thatof Fig. 1 to that ofFig. 2 is the functionkinds and were the edge toremain as shown 4in Fig. 1 it would ybe a sortoa raw cutting 'edge fromthe actions in blanking and formof the machine.

Fig. 3 is a sectional elevation of the Inachine on line 3-3 of Fig. 14.Fig. 4 is a' sectional view through the. curling heads. lor chucks ofthe machine when the same are in position for receivingthe cap to beoperated upon. Fig. 5 is .a similar view to that of Fig. 4 showing thenext progress step-of operation of the machine from that of Fig. 4 toFig. 5. Fig. 6`is a similar view to that of Figs. 4 and 5 showing theparts at the completion of the operation of the curling over .of theedge of the flange. Fig. 7 is a similar view tothat of Figs. 4, 5, and 6showing the step of discharging a cap from the curling heads or chucks.Fig. 8 is a sectional viewV through the body of the machine showing thecurling heads or chucks in section and their connecting parts. Fig. 9 isa vertical sectional elevation on line 9 9 of Fig. 11. Fig. 10 is a planview showing the caps going from the hopper chute into the curlingdevices. Fig. 11 1s a plan view of the machine. :Fig 12 is a plan detailof a detector device that insures the entry` of the caps from the hopperin the` rightl position to be received by the curling Fig. 13 is -asectional detail of a cam structure, on line 13-13 of Fig. 14. Fig. 14is a side vertical elevation of the 1923. Serial No. 643,209.

-metal for the outside portion of the capl 4may use any suitablematerial and likewise `I lmay line with any suitable material besidespaper. lhe lining is securedv to the metal by a suitable adhesive whichserves to keep thetwo materialslin such close contact that they amountto a single piece in so far as the-operation upon the cap is concerned.The cap is lirst formed as shown, in Fig. 1 having itslange beaded as isindicated by 4,y 5 and 6 and as before stated the purpose of "themachine is to curlover the edge 6 1nv the form indicated'by 7 in Fig. 2.Thus the edge pf the metal portion is made to over- -zlap the edge ofthe lining portion which insures against the vlining' coming loose fromthe material on the edge of the `flange of the individually by the handin their further use as caps over jars and vessels' of` various ing thecaps but with the curled over edge 7 a smooth desirableedge is produced.

The caps formed as lshown in Fig. 1 are thrown into the hopper 8 of themachine,

see Figs..3 and 11, in a more or less promiscuous shape. An operatorstands by the machine and one by one directs the caps down the hopper ina form shown by the gottedlines 9 in Fig. 3 and full lines in It -isnecessary that these caps be rightly positioned in the chute 10 whichl.conducts them from the hopper 8 into the machine .and in order thatthey cannot pass through the machige in any other than the right'position I provide a spoked wheel 11 having the spokes 12 and mounted ona pin 13 and adapted to rotate under the influence in the caps 9 passingdown the chute 10 as is shown in Figs. 11 and 12. yWere the caps to vbereversed from the position shown in Fig. 12 the spokes 12 of the wheel11 would lock the cap from passing further through thechute and by thismeans the caps are always delivered into the `chucks in the rightposition to be received by them.

vThe machine is provided with a suitable cap. --Furth'eiy these caps areoften handled simply as one of the frame members and also as a mandrelupon which is mounted the operative parts of the machine, some of -whichare statlonary upon the shaft 16 and some of which are mounted torevolve on this shaft.

As aterminus for the chute 10 to receive the caps 9 there is provided arevolving carrier member 17 which in some respects has the appearance ofa toothed wheel or cam'and is rovided with the pockets 18 and what maytermed the cam surfaces 19 arranged in a manner that as this member'revolves it takes out of the chute 10 a single unit of a cap each timeone of the pockets n18 revolves past the end@ of the chute 10, rsee Fig.9. This carrier member 17 is secured bythe bolts 20 to some studs 21into va chuck spindle castin 22 rwhich provides the journals 23 in whicthe chuck spindles l24 revolve. This chuck spindle casting 22 isprovided with the hub 25 journaled on to the shaft 16 and is providedwith an oil cistern 26, see Fig. 8. Mounted on the chuck spindle casting22 there vis a driving gear 27 which is driven by a pinion `28 ona'shaft 29 suitably journaled to the machine frame and driven by apulley 30 under theV inuence of a belt 31, connected to the shaft 29through the medium of a clutch 32 controlled by the operator as desiredby the lever 33. For hand movement of the shaft 29 there is provided thehand wheel 34, see Fig. 14. Thus in the normal operation of the machinethe chuck spindle casting 22 continuously revolves so lon as the poweris applied to the shaft 29. pon the chuck spindles 24 there arey ke edthe pinions 35 which are engaged and driven by a gear 36 having its hub37 revolving on the saidv shaft 16 and upon an egitension of this hub 37there is fixed by. a key seat and a set screw afdriving gear 38 which isdriven from the gear 39 on the said shaft 29 through the medium of anidle pinion 40 and the latter being used for the purpose of reversingthe direction of the travel of the gear 38 from that of the gear 27.Thus as-t e gear 27 with its chuck spindle casting 22 revolves, the`chuck s indle's 24 are mad to revolve at a relative y high rate of speeThe chuck spindles 24 carry chuck blocks 41 suitably fastened on thespindles 24 but here shown as being threaded on, and these blocks 41carry small grooved curling rollers 42 which revolve on pins 43 in thechuck blocks 41.

The spindles 24 are perforated and provided with sliding rods 44 whichserve to push the caps from the seat or pocket 18 when a cap firstarrives from the chute 10 v of some cam out into the embrace oftheholding chucks is accomplished by a stationary lcam block 46 screwedto a bracket 47 by bolts 48, see Figs. 8 and 14. The cam block 46 worksagainst the rounded end 49 of a bar 50 which carries a spring 51 in anaperture of the bar 50, which spring `51 abuts against the end of therod 44 and thus connects the rod'44 to the block 50, making the twopieces operate substantially as one with the exception of the adjustmentallowed for the spring 51 by a small pin 52 working in a notch 53 of therod 44. A spring 54 abuts against' the end of the block 50 and serves torestore the movement of the parts that are affected by the cam block 46.The movement produced by the spring 54 is limitedv by a shoulder on theblock engaging the cap 55 screwed on to the spindles 24. At the lowerside of the machine there is providedv the ejecting cam block 56 havingthe cam surface 57 and sup orted by the stud 58 and.bolt 59 in the ramepost 14 of the machine, see Figs.. 8 and 13. The purpose of this cam 56isto eject and dis charge entirely theA finished cap from the machine.5' :1 v y f At the right of the machine and opposite the block orcasting 22 and firmly secured thereon to revolve therewith there is thespider casting 61 'which provides carrying 45 opposite the chucks 41 andthis movement guideways 62'for rods 63 which are splined in theguideways 62 and are adapted to slide horizontally `in the guide 62 butnot to revolve therein, and mounted on one end of these rods in fixedposition are the holding chucks 45. On the opposite end of each of therods 6 3 'a cam roller 64 is revolubly mounted on one of the pins 65.These rollers I64 travel in the cam track 66 ina cam block .thechucks 41ina manner of holding the cap to the work ofhaving the edge curled overby the curling rollers 42'. In the revolution ofthe blocks 22 and 61,the'rollers 64 in the cam track 66 move the holding chucks 45 in and outas desired at the severall stages of the rwork and the `finished capsare ejected from the holding chucksv 45 bythe ejector V-VA plates 68supported by pins 69 within the said blocks 45. These plates 68with-their pins 69 simply float in their movement vunder the iniluenceof the push of the rods 44 in one direction, and the push (pilates 70fastened b screws. 471 to the gui pins 69 are made to contact with theIplates' 70 because of the fact that the plates 0 limit the stroke atwhich the pins 69 may be drawn to the right when the rods 63 with eways62. j The en s of 'the the chucks 45 are moved to the right to the fulllimit at the position of the machine where the cap is to be discharged.Thus there is automatically produced the ejection of the cap from theholding chucks 45 when the spider 61 has revolved around to the desiredposition where the cam track 66 withdraws the rods 63 to thev full limitto the vright which is the position for discharging stantially as a partthereof.' The purpose 7ofthis cam ring 72 and its cam tracks 73 iis toactuate at the proper moment the pin 75 to hold or dam otf the caps 9from flowing out of the end of the chute 10 during the travel from chuckto chuck as the chucks revolve past the mouth of the chute 10. This pin75 is held in a keeper plate 7 6 secured to the chute 10 by the screws77, see Fig. 9, and a spring 78 working against a collar 79 keeps thepin 75 always 1n position of contact with the last cap 9 -in the chute,and it is the function of the cam tracks 73 of the ring 72 tomomentarily release the 'contact of this pin 75 with the caps when it isdesired that one should roll by gravity into the pocket 18 of thecarrier plate 17. The connection between the pin 75 and the cam track 73is brought about by a plate 80 through which the head of the pin 75passes and the plate 80 is hinged by the screw 81 to the frame member 82yof the machine. Thus as the chucks are revolved one by one the caps areallowed to roll out of the chute 10 at the proper interval to registerin the carrying pockets 18.

The arrangement ofthe machine as described permits a continuousrevolution of the chucks past the chute l0 and at the proper interval acap is taken out of the chute and by the action of the cam tracks beforedescribed the cap is irst pushed by the rods 44 from the position shownin Fig. 4 over into the position in Fig. 5 which results in the -capbeing held rmly in the carrying chucks 45 there being a snug t of thecap into the flange 83 of the chuck 45. From the position of Fig. 5 thecamy track 66 forces the rods 63 over to the position of Fig. 6 bringingthe edge 6 of the ange of the cap into the curling groove of the rollers42 which rollers arev carried around rapidly by the rapid revolution ofthe spindles 24 through the medium of the gearing previously described.There being three of these rollers 42 in each chuck 41 working asa-balance upon the flange of the eap they rapidly curl over the edge 'ofthe `for the caps ,faced from th flange of the cap to the position-shownby 7 discharged to the position of Fig. 7, and the caps immediately dropout of the machine as soon as the rod 44 is drawn backy again by thespring 54 when permitted to do so by theend 49 of the bar 50 immediatelyupon the clearanpe from the cam block 56. Thus the operation of themachine is substantially as rapid as the operator may properly supplythe caps in the right positionin the chute 10.

What I claim is 1. In a device of the class described, a chutewayadapted to deliver caps in succession, a constantly moving carriermember, a series of holding chucks mounted yon one side of the saidcarrier member and a series of curling chucks mounted on the other sidep 1 ,of the said carrier member, the said holding chucks-beingstationary as relates to rotating movement but adapted to movelongitudinally at approximately right angles to the said carrier member,and said curling chucks adapted to be revolved about the axis of the capand providedg` withV grooved curling rollers to engage the flange on thecap and curl the same back upon itself, ejector mechanism for movingboth sets of chucks in alignment with each other, stationary cam tracksandmechanism connected therewith for forcing the caps into the embraceof the holding chucks and also for discharging them from the curlingchucks; in combination with suitable gearing and source of power forrevolving the said chucks and carrier member past the said chuteway andfor simultaneously revolving the said curling chucks.

2. In a device of the class described, a delivery chute adapted todeliver caps successivel to curling chucks, a curling chuck adaptedY tobe revolved about its axis and also revolved past the said deliverychute a holding chuck oppositely e said curling chuck and in alignmenttherewith and adapted to be revolved bodily but not circumferentially inassociation with the said curling chuck and provided with an ejectormechanism carried within the body of thev holding chuck and thetwochucks mounted to revolve in unison in relation to the said deliverychute and mechanism for automatically moving the holding chuck to andfrom the curling chuck.

3. In a device' of the class described, means' curling chuck, means forrevolving said curling and holding chucks about a common axis. means forrevolving each curling chuck about its axis, cap ejecting means Ior eachcurling chuck and means for reciprocating each holding chuck intov andout of engagement with a cap on a -co-acting curling 4. In a device ofthe class described,the combnation with a plurality of curling chuckseach provided With a plurality of curling'rollers mounted to revolvefreely on axes perpendicular to the axis of the curling chuck, means forrotating each curling chuck about its axis, means for supplying properlypositioned capsto said curling chucks, a plurality of cap holding chucksadapted to hold1 a cap while operated upon by a co-acting curling chuck,means for rotating said curling and holding chucks about a common axis,and means for releasing the curledcaps.

5. In a device of the class described, the combination With a revolvingspider having a plurality of longitudinal bearings, a plurality ofcurling chucks, each liaving'a plurality of curling rollers, and mountedin said revolving spider, a holding chuck for each of said curlingchucks, means for re volving said spider, means for revolving in areverse direction said curling chucks 1n .said bearings in said spider,means for relivery of the caps to the said curlingmecha? nism, twoseries of chucks one composed of members `for holding caps and the otherseries for operating on the caps, means for moving the two series inrelation to each volving one series of the said series of chucks, andmeans carried within one of the series for curling over the edge of thecaps.

7. In a device of the class described, a frame having a centralsupporting fixed shaft fixed in the said frame and adapted to furnish anaxis for sup orting revolving and fixed members, revo ving and fixedmembers mounted upon said xe'd supportin shaft, some of the said fixedmembers being provided with cam tracks, a series of rods carried by therevolving members and mounted to move in parallel relationship with theaxis of said fixed shaft and adapted to be engaged and moved by the saidcam tracks, a series of spindles carrying chucks, the said rods mounted'Within the said spindles, a series of chucks mounted on the saidspindles, said chucks provided with curling rollers adapted to curl overthe flange of a cap upon itself, gearing mounted on the said ixed shaftand connected to be driven and carry with it the said revolving members.

8. In a device of the class described, a delivery chute for caps, arevolving spindle, a rotatin and moving chuck mounted upon said revoving spindle adapted to operate and curl over a flange of a cap uponitself,

means for carrying the said chuck to andw from said delivery chute forthe caps, means contained Within the said spindle of the said chuck formoving a cap longitudinally and parallel with the axis of the saidspindle, stationary cam tracks past Which the Said spindle of the saidchuck is moved, said cam tracks adaptedto actuate the said means Withinthe said spindle for moving the said cap.

Si ned at Chicago, in the county of Cook, and tate of Illinois, this 9thday of April,

SWAN NILS TEVANDER.

